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| author | Michael Vogt <michael.vogt@ubuntu.com> | 2009-01-13 17:50:30 +0100 |
|---|---|---|
| committer | Michael Vogt <michael.vogt@ubuntu.com> | 2009-01-13 17:50:30 +0100 |
| commit | 8b46b0c4bdfbaa07972311b1cf19616d5c5aff04 (patch) | |
| tree | 59167b2b8c1d331bfebf072d5ba84dd154f0b373 /doc/source | |
| parent | 6c1711a80a8a7d011f4d5f49618ff396ad2f5722 (diff) | |
| parent | 85839f4f241c99f9e4ebb0a6a8847a2d433f1160 (diff) | |
| download | python-apt-8b46b0c4bdfbaa07972311b1cf19616d5c5aff04.tar.gz | |
merge from the debian experimental branch
Diffstat (limited to 'doc/source')
24 files changed, 2614 insertions, 0 deletions
diff --git a/doc/source/apt/cache.rst b/doc/source/apt/cache.rst new file mode 100644 index 00000000..d96cba97 --- /dev/null +++ b/doc/source/apt/cache.rst @@ -0,0 +1,78 @@ +:mod:`apt.cache` --- The Cache class +===================================== +.. automodule:: apt.cache + +The Cache class +--------------- + +.. autoclass:: Cache + :members: + :undoc-members: + + .. describe:: cache[pkgname] + + Return a :class:`Package()` for the package with the name *pkgname*. + +Example +^^^^^^^ + +The following example shows how to load the cache, update it, and upgrade +all the packages on the system:: + + import apt + import apt.progress + + # First of all, open the cache + cache = apt.Cache() + # Now, lets update the package list + cache.update() + # We need to re-open the cache because it needs to read the package list + cache.open(None) + # Now we can do the same as 'apt-get upgrade' does + cache.upgrade() + # or we can play 'apt-get dist-upgrade' + cache.upgrade(True) + # Q: Why does nothing happen? + # A: You forgot to call commit()! + cache.commit(apt.progress.TextFetchProgress(), + apt.progress.InstallProgress()) + + + +Working with Filters +-------------------- +.. autoclass:: Filter + :members: + :inherited-members: + :undoc-members: + +.. autoclass:: MarkedChangesFilter + :members: + :inherited-members: + :undoc-members: + +.. autoclass:: FilteredCache + :members: + :inherited-members: + :undoc-members: + + +Example +^^^^^^^ + +This is an example for a filtered cache, which only allows access to the +packages whose state has been changed, eg. packages marked for installation:: + + >>> from apt.cache import FilteredCache, Cache, MarkedChangesFilter + >>> cache = apt.Cache() + >>> changed = apt.FilteredCache(cache) + >>> changed.setFilter(MarkedChangesFilter()) + >>> print len(changed) == len(cache.GetChanges()) # Both need to have same length + True + + +Exceptions +---------- +.. autoexception:: FetchCancelledException +.. autoexception:: FetchFailedException +.. autoexception:: LockFailedException diff --git a/doc/source/apt/cdrom.rst b/doc/source/apt/cdrom.rst new file mode 100644 index 00000000..56381f14 --- /dev/null +++ b/doc/source/apt/cdrom.rst @@ -0,0 +1,7 @@ +:mod:`apt.cdrom` - Functionality like in apt-cdrom +==================================================== +.. automodule:: apt.cdrom + :members: + + + diff --git a/doc/source/apt/debfile.rst b/doc/source/apt/debfile.rst new file mode 100644 index 00000000..7133b5a8 --- /dev/null +++ b/doc/source/apt/debfile.rst @@ -0,0 +1,39 @@ +:mod:`apt.debfile` --- Classes related to debian package files +============================================================== +The :mod:`apt.debfile` provides classes to work with locally available +debian packages, or source packages. + +.. module:: apt.debfile + +Binary packages +---------------- +.. autoclass:: DebPackage + :members: + :inherited-members: + :undoc-members: + + The :class:`DebPackage` class is a class for working with '.deb' files, + also known as Debian packages. + + It provides methods and attributes to get a list of the files in the + package, to install the package and much more. + + If you specify *cache* it has to point to an :class:`apt.cache.Cache()` + object. + + .. versionchanged:: 0.7.9 + Introduce all new methods (everything except for :meth:`open()` and + :attr:`filelist`) + + +Source packages +---------------- +.. autoclass:: DscSrcPackage + :members: + :inherited-members: + :undoc-members: + + Provide functionality to work with locally available source packages, + especially with their '.dsc' file. + + .. versionadded:: 0.7.9 diff --git a/doc/source/apt/gtk.widgets.rst b/doc/source/apt/gtk.widgets.rst new file mode 100644 index 00000000..9fa84ead --- /dev/null +++ b/doc/source/apt/gtk.widgets.rst @@ -0,0 +1,29 @@ +:mod:`apt.gtk.widgets` --- GTK widgets +====================================== +.. automodule:: apt.gtk.widgets + + +GObject progress classes +------------------------- + +.. autoclass:: GDpkgInstallProgress + :members: + +.. autoclass:: GFetchProgress + :members: + +.. autoclass:: GInstallProgress + :members: + +.. autoclass:: GOpProgress + :members: + +GTK+ Class +---------- +.. autoclass:: GtkAptProgress + :members: + + +Example +------- +.. literalinclude:: ../examples/apt-gtk.py diff --git a/doc/source/apt/index.rst b/doc/source/apt/index.rst new file mode 100644 index 00000000..5047a0fd --- /dev/null +++ b/doc/source/apt/index.rst @@ -0,0 +1,58 @@ +:mod:`apt` --- Highlevel apt package +===================================== +The highlevel apt package provides a lot of functionality, all +with an easy-to-use interface. + +.. warning:: + The API of this package is not considered stable. Evenmore, it is considered + to change the naming conventions in future to lowercase_with_underscores. + + In case this happens, the API will still be kept compatible, with the old + functions provided as deprecated ones. + +.. automodule:: apt + :members: + + + + +.. toctree:: + :maxdepth: 2 + :glob: + + * + + +Classes exported in apt +------------------------ +These classes are defined in the submodules, but are also exported directly +in the package. + +.. class:: Cache + + Please see :class:`apt.cache.Cache` for documentation. + +.. class:: Cdrom + + Please see :class:`apt.cdrom.Cdrom` for documentation. + +.. class:: CdromProgress + + Please see :class:`apt.progress.CdromProgress` for documentation. + +.. class:: FetchProgress + + Please see :class:`apt.progress.FetchProgress` for documentation. + +.. class:: InstallProgress + + Please see :class:`apt.progress.InstallProgress` for documentation. + +.. class:: OpProgress + + Please see :class:`apt.progress.OpProgress` for documentation. + +.. class:: Package + + Please see :class:`apt.package.Package` for documentation. + diff --git a/doc/source/apt/package.rst b/doc/source/apt/package.rst new file mode 100644 index 00000000..1bd032ab --- /dev/null +++ b/doc/source/apt/package.rst @@ -0,0 +1,101 @@ +:mod:`apt.package` --- Classes for package handling +==================================================== + + +.. automodule:: apt.package + + +The Package class +----------------- +.. autoclass:: Package + :members: + + +Dependency Information +---------------------- +.. class:: BaseDependency + + The :class:`BaseDependency` class defines various attributes for accessing + the parts of a dependency. The attributes are as follows: + + .. attribute:: name + + The name of the dependency + + .. attribute:: relation + + The relation (>>,>=,==,<<,<=,) + + .. attribute:: version + + The version or None. + + .. attribute:: preDepend + + Boolean value whether this is a pre-dependency. + +.. class:: Dependency + + The dependency class represents a Or-Group of dependencies. It provides + an attribute to access the :class:`BaseDependency` object for the available + choices. + + .. attribute:: or_dependencies + + A list of :class:`BaseDependency` objects which could satisfy the + requirement of the Or-Group. + + +Origin Information +------------------- +.. class:: Origin + + The :class:`Origin` class provides access to the origin of the package. + It allows you to check the component, archive, the hostname, and even if + this package can be trusted. + + .. attribute:: archive + + The archive (eg. unstable) + + .. attribute:: component + + The component (eg. main) + + .. attribute:: label + + The Label, as set in the Release file + + .. attribute:: origin + + The Origin, as set in the Release file + + .. attribute:: site + + The hostname of the site. + + .. attribute:: trusted + + Boolean value whether this is trustworthy. An origin can be trusted, if + it provides a GPG-signed Release file and the GPG-key used is in the + keyring used by apt (see apt-key). + +Examples +--------- +.. code-block:: python + + import apt + + cache = apt.Cache() + pkg = cache['python-apt'] # Access the Package object for python-apt + print 'python-apt is trusted:', pkg.candidateOrigin.trusted + + # Mark python-apt for install + pkg.markInstall() + + print 'python-apt is marked for install:', pkg.markedInstall + + print 'python-apt is', pkg.summary #Python interface to libapt-pkg + + # Now, really install it + cache.commit() diff --git a/doc/source/apt/progress.rst b/doc/source/apt/progress.rst new file mode 100644 index 00000000..8989aa27 --- /dev/null +++ b/doc/source/apt/progress.rst @@ -0,0 +1,37 @@ +:mod:`apt.progress` --- Classes for progress reporting +====================================================== +.. automodule:: apt.progress + +.. warning:: + + This class is currently under re-organisation. Therefore, the API may + change soon. The old names will still be kept until it is safe to remove + them. + + + +Classes without output +---------------------- +.. autoclass:: FetchProgress + :members: +.. autoclass:: OpProgress + :members: +.. autoclass:: CdromProgress + :members: +.. autoclass:: DumbInstallProgress + :members: + +Implementing classes for text output +------------------------------------ +.. autoclass:: TextFetchProgress + :members: +.. autoclass:: OpTextProgress + :members: +.. autoclass:: InstallProgress + :members: +.. autoclass:: DpkgInstallProgress + :members: + + + + diff --git a/doc/source/apt_inst.rst b/doc/source/apt_inst.rst new file mode 100644 index 00000000..97705f61 --- /dev/null +++ b/doc/source/apt_inst.rst @@ -0,0 +1,96 @@ +:mod:`apt_inst` - Working with local Debian packages +==================================================== +.. module:: apt_inst + +The :mod:`apt_inst` extension provides access to functions for working with +locally available Debian packages (.deb files) and tar files. + + +Checking packages +------------------ +.. function:: arCheckMember(file, membername) + + Check if the member specified by the parameter *membername* exists in + the AR file referenced by the :class:`file` object *file*. + + +Listing contents +----------------- +.. function:: debExtract(file, func, chunk) + + Call the function referenced by *func* for each member of the tar file + *chunk* which is contained in the AR file referenced by the file object + *file*. + + An example would be:: + + debExtract(open("package.deb"), my_callback, "data.tar.gz") + + See :ref:`emulating-dpkg-contents` for a more detailed example. + +.. function:: tarExtract(file,func,comp) + + Call the function *func* for each member of the tar file *file*. + + *Comp* is a string determining the compressor used. Possible options are + "lzma", "bzip2" and "gzip". + + +Callback +^^^^^^^^^ +Both of these functions expect a callback with the signature +``(what, name, link, mode, uid, gid, size, mtime, major, minor)``. + +The parameter *what* describes the type of the member. It can be 'FILE', +'DIR', or 'HARDLINK'. + +The parameter *name* refers to the name of the member. In case of links, +*link* refers to the target of the link. + + +Extracting contents +------------------- + +.. function:: debExtractArchive(file, rootdir) + + Extract the archive referenced by the :class:`file` object *file* + into the directory specified by *rootdir*. + + See :ref:`emulating-dpkg-extract` for an example. + + .. warning:: + + If the directory given by *rootdir* does not exist, the package is + extracted into the current directory. + +.. function:: debExtractControl(file[, member='control']) + + Return the indicated file from the control tar. The default is 'control'. + + If you want to print the control file of a given package, you could do + something like:: + + print debExtractControl(open("package.deb")) + + :return: The contents of the file, as :class:`str`. + + +.. _emulating-dpkg-extract: + +Example: Emulating :program:`dpkg` :option:`--extract` +------------------------------------------------------- +Here is a code snippet which emulates dpkg -x. It can be run as +:program:`tool` :option:`pkg.deb` :option:`outdir`. + +.. literalinclude:: examples/dpkg-extract.py + + +.. _emulating-dpkg-contents: + +Example: Emulating :program:`dpkg` :option:`--contents` +------------------------------------------------------- +.. literalinclude:: examples/dpkg-contents.py + +Example: Emulating :program:`dpkg` :option:`--info` +---------------------------------------------------- +.. literalinclude:: examples/dpkg-info.py diff --git a/doc/source/apt_pkg/cache.rst b/doc/source/apt_pkg/cache.rst new file mode 100644 index 00000000..af67d82f --- /dev/null +++ b/doc/source/apt_pkg/cache.rst @@ -0,0 +1,1227 @@ +Classes in apt_pkg +================== + +.. todo:: + + This should be split and cleaned up a bit. + +:class:`Acquire` +---------------- +.. class:: Acquire + + .. method:: Run() + + Fetch all the items which have been added by + :func:`apt_pkg.GetPkgAcqFile`. + + .. method:: Shutdown + + Shut the fetcher down. + +:class:`PkgAcqFile` +------------------- +.. class:: PkgAcqFile + + This class provides no methods or attributes + +:class:`AcquireItem` +--------------------- + +.. class:: AcquireItem + + .. attribute:: ID + + The ID of the item. + + .. attribute:: Complete + + Is the item completely acquired? + + .. attribute:: Local + + Is the item a local file? + + .. attribute:: IsTrusted + + Can the file be trusted? + + .. attribute:: FileSize + + The size of the file, in bytes. + + .. attribute:: ErrorText + + The error message. For example, when a file does not exist on a http + server, this will contain a 404 error message. + + .. attribute:: DestFile + + The location the file is saved as. + + .. attribute:: DescURI + + The source location. + + **Status**: + + .. attribute:: Status + + Integer, representing the status of the item. + + .. attribute:: StatIdle + + Constant for comparing :attr:`AcquireItem.Status`. + + .. attribute:: StatFetching + + Constant for comparing :attr:`AcquireItem.Status` + + .. attribute:: StatDone + + Constant for comparing :attr:`AcquireItem.Status` + + .. attribute:: StatError + + Constant for comparing :attr:`AcquireItem.Status` + + .. attribute:: StatAuthError + + Constant for comparing :attr:`AcquireItem.Status` + +:class:`ActionGroup` +-------------------- + +.. class:: ActionGroup + + Normally, apt checkes the package cache after every modification for + packages which are automatically installed but on which no package depends + anymore (it collects the package garbage). + + Using ActionGroups you can turn this off and therefore make your code + much faster. + + Initialize it using :func:`apt_pkg.GetPkgActionGroup`, eg:: + + apt_pkg.GetPkgActionGroup(depcache) + + .. method:: release + + Release the ActionGroup. This will reactive the collection of package + garbage. + + +:class:`Configuration` +---------------------- + +.. class:: Configuration + + The Configuration objects store the configuration of apt. + + .. describe:: conf[key] + + Return the value of the option given key *key*. If it does not + exist, raise :exc:`KeyError`. + + .. describe:: conf[key] = value + + Set the option at *key* to *value*. + + .. method:: Find(key[, default='']) + + Return the value for the given key *key*. This is the same as + :meth:`Configuration.get`. + + If *key* does not exist, return *default*. + + .. method:: FindFile(key[, default='']) + + Return the filename hold by the configuration at *key*. This formats the + filename correctly and supports the Dir:: stuff in the configuration. + + If *key* does not exist, return *default*. + + .. method:: FindDir(key[, default='/']) + + Return the absolute path to the directory specified in *key*. A + trailing slash is appended. + + If *key* does not exist, return *default*. + + .. method:: FindI(key[, default=0]) + + Return the integer value stored at *key*. + + If *key* does not exist, return *default*. + + .. method:: FindB(key[, default=0]) + + Return the boolean value stored at *key*. This returns an integer, but + it should be treated like True/False. + + If *key* does not exist, return *default*. + + .. method:: Set(key, value) + + Set the value of *key* to *value*. + + .. method:: Exists(key) + + Check whether the key *key* exists in the configuration. + + .. method:: SubTree(key) + + Return a sub tree starting at *key*. The resulting object can be used + like this one. + + .. method:: List([key]) + + List all items at *key*. Normally, return the keys at the top level, + eg. APT, Dir, etc. + + Use *key* to specify a key of which the childs will be returned. + + .. method:: ValueList([key]) + + Same as :meth:`Configuration.List`, but this time for the values. + + .. method:: MyTag() + + Return the tag name of the current tree. Normally this is an empty + string, but for subtrees it is the key of the subtree. + + .. method:: Clear(key) + + Clear the configuration. Remove all values and keys at *key*. + + .. method:: keys([key]) + + Return all the keys, recursive. If *key* is specified, ... (FIXME) + + .. method:: has_key(key) + + Return whether the configuration contains the key *key*. + + .. method:: get(key[, default='']) + + This behaves just like :meth:`dict.get` and :meth:`Configuration.Find`, + it returns the value of key or if it does not exist, *default*. + + +:class:`pkgCache` +----------------- +.. class:: pkgCache + + The :class:`pkgCache` class prov + + .. describe:: cache[pkgname] + + Return the :class:`Package()` object for the package name given by + *pkgname*. + + .. method:: Close() + + Close the package cache. + + .. method:: Open([progress]) + + Open the package cache again. The parameter *progress* may be set to + an :class:`apt.progress.OpProgress()` object or `None`. + + .. method:: Update(progress, list) + + Update the package cache. + + The parameter *progress* points to an :class:`apt.progress.FetchProgress()` + object. + + The parameter *list* refers to an object as returned by + :func:`apt_pkg.GetPkgSourceList`. + + .. attribute:: DependsCount + + The total number of dependencies. + + .. attribute:: PackageCount + + The total number of packages available in the cache. + + .. attribute:: ProvidesCount + + The number of provided packages. + + .. attribute:: VerFileCount + + .. todo:: Seems to be some mixture of versions and pkgFile. + + .. attribute:: VersionCount + + The total number of package versions available in the cache. + + .. attribute:: PackageFileCount + + The total number of Packages files available (the Packages files + listing the packages). This is the same as the length of the list in + the attribute :attr:`FileList`. + + .. attribute:: FileList + + A list of :class:`PackageFile` objects. + + +:class:`PackageFile` +-------------------- +.. class:: PackageFile + + A :class:`PackageFile` represents a Packages file, eg. + /var/lib/dpkg/status. + + .. attribute:: Architecture + + The architecture of the package file. + + .. attribute:: Archive + + The archive (eg. unstable) + + .. attribute:: Component + + The component (eg. main) + + .. attribute:: FileName + + The name of the file. + + .. attribute:: ID + + The ID of the package. This is an integer which can be used to store + further information about the file [eg. as dictionary key]. + + .. attribute:: IndexType + + The sort of the index file. In normal cases, this is + 'Debian Package Index'. + + .. attribute:: Label + + The Label, as set in the Release file + + .. attribute:: NotAutomatic + + Whether packages from this list will be updated automatically. The + default for eg. example is 0 (aka false). + + .. attribute:: NotSource + + Whether the file has no source from which it can be updated. In such a + case, the value is 1; else 0. /var/lib/dpkg/status is 0 for example. + + Example:: + + for pkgfile in cache.FileList: + if pkgfile.NotSource: + print 'The file %s has no source.' % pkgfile.FileName + + .. attribute:: Origin + + The Origin, as set in the Release file + + .. attribute:: Site + + The hostname of the site. + + .. attribute:: Size + + The size of the file. + + .. attribute:: Version + + The version, as set in the release file (eg. "4.0" for "Etch") + + +Example +^^^^^^^ +.. literalinclude:: ../examples/cache-pkgfile.py + + +:class:`Package` +---------------- + +.. class:: Package + + The pkgCache::Package objects are an interface to package specific + features. + + + Attributes: + + .. attribute:: CurrentVer + + The version currently installed, or None. This returns a + :class:`Version` object. + + .. attribute:: ID + + The ID of the package. This can be used to store information about + the package. The ID is an int value. + + .. attribute:: Name + + This is the name of the package. + + .. attribute:: ProvidesList + + A list of packages providing this package. More detailed, this is a + list of tuples (str:pkgname, ????, :class:`Version`). + + If you want to check for check for virtual packages, the expression + ``pkg.ProvidesList and not pkg.VersionList`` helps you. It detects if + the package is provided by something else and is not available as a + real package. + + .. attribute:: RevDependsList + + An iterator of :class:`Dependency` objects for dependencies on this + package. + + .. attribute:: Section + + The section of the package, as specified in the record. The list of + possible sections is defined in the Policy. + + .. attribute:: VersionList + + A list of :class:`Version` objects for all versions available in the + cache. + + **States**: + + .. attribute:: SelectedState + + The state we want it to be, ie. if you mark a package for installation, + this is :attr:`apt_pkg.SelStateInstall`. + + See :ref:`SelStates` for a list of available states. + + .. attribute:: InstState + + The state the currently installed version is in. This is normally + :attr:`apt_pkg.InstStateOK`, unless the installation failed. + + See :ref:`InstStates` for a list of available states. + + .. attribute:: CurState + + The current state of the package (not installed, unpacked, installed, + etc). See :ref:`CurStates` for a list of available states. + + **Flags**: + + .. attribute:: Auto + + Whether the package was installed automatically as a dependency of + another package. (or marked otherwise as automatically installed) + + .. attribute:: Essential + + Whether the package is essential. + + .. attribute:: Important + + Whether the package is important. + +Example: +^^^^^^^^^ +.. literalinclude:: ../examples/cache-packages.py + + + +:class:`Version` +---------------- +.. class:: Version + + The version object contains all information related to a specific package + version. + + .. attribute:: VerStr + + The version, as a string. + + .. attribute:: Section + + The usual sections (eg. admin, net, etc.). Prefixed with the component + name for packages not in main (eg. non-free/admin). + + .. attribute:: Arch + + The architecture of the package, eg. amd64 or all. + + .. attribute:: FileList + + A list of (:class:`PackageFile`, int: index) tuples for all Package + files containing this version of the package. + + .. attribute:: DependsListStr + + A dictionary of dependencies. The key specifies the type of the + dependency ('Depends', 'Recommends', etc.). + + + The value is a list, containing items which refer to the or-groups of + dependencies. Each of these or-groups is itself a list, containing + tuples like ('pkgname', 'version', 'relation') for each or-choice. + + An example return value for a package with a 'Depends: python (>= 2.4)' + would be:: + + {'Depends': [ + [ + ('python', '2.4', '>=') + ] + ] + } + + The same for a dependency on A (>= 1) | B (>= 2):: + + {'Depends': [ + [ + ('A', '1', '>='), + ('B', '2', '>='), + ] + ] + } + + .. attribute:: DependsList + + This is basically the same as :attr:`Version.DependsListStr`, + but instead of the ('pkgname', 'version', 'relation') tuples, + it returns :class:`Dependency` objects, which can assist you with + useful functions. + + .. attribute:: ParentPkg + + The :class:`Package` object this version belongs to. + + .. attribute:: ProvidesList + + This returns a list of all packages provided by this version. Like + :attr:`Package.ProvidesList`, it returns a list of tuples + of the form ('virtualpkgname', ???, :class:`Version`), where as the + last item is the same as the object itself. + + .. attribute:: Size + + The size of the .deb file, in bytes. + + .. attribute:: InstalledSize + + The size of the package (in kilobytes), when unpacked on the disk. + + .. attribute:: Hash + + An integer hash value. + + .. attribute:: ID + + An integer id. + + .. attribute:: Priority + + The integer representation of the priority. This can be used to speed + up comparisons a lot, compared to :attr:`Version.PriorityStr`. + + The values are defined in the :mod:`apt_pkg` extension, see + :ref:`Priorities` for more information. + + .. attribute:: PriorityStr + + Return the priority of the package version, as a string, eg. + "optional". + + .. attribute:: Downloadable + + Whether this package can be downloaded from a remote site. + + .. attribute:: TranslatedDescription + + Return a :class:`Description` object. + + +:class:`Dependency` +------------------- +.. class:: Dependency + + Represent a dependency from one package to another one. + + .. method:: AllTargets + + A list of :class:`Version` objects which satisfy the dependency, + and do not conflict with already installed ones. + + From my experience, if you use this method to select the target + version, it is the best to select the last item unless any of the + other candidates is already installed. This leads to results being + very close to the normal package installation. + + .. method:: SmartTargetPkg + + Return a :class:`Version` object of a package which satisfies the + dependency and does not conflict with installed packages + (the 'natural target'). + + .. attribute:: TargetVer + + The target version of the dependency, as string. Empty string if the + dependency is not versioned. + + .. attribute:: TargetPkg + + The :class:`Package` object of the target package. + + .. attribute:: ParentVer + + The :class:`Version` object of the parent version, ie. the package + which declares the dependency. + + .. attribute:: ParentPkg + + The :class:`Package` object of the package which declares the + dependency. This is the same as using ParentVer.ParentPkg. + + .. attribute:: CompType + + The type of comparison (>=, ==, >>, <=), as string. + + .. attribute:: DepType + + The type of the dependency, as string, eg. "Depends". + + .. attribute:: ID + + The ID of the package, as integer. + +Example: Find all missing dependencies +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +With the help of Dependency.AllTargets(), you can easily find all packages with +broken dependencies: + +.. literalinclude:: ../examples/missing-deps.py + + +:class:`Description` +-------------------- +.. class:: Description + + Represent the description of the package. + + .. attribute:: LanguageCode + + The language code of the description + + .. attribute:: md5 + + The md5 hashsum of the description + + .. attribute:: FileList + + A list of tuples (:class:`PackageFile`, int: index). + + + +:class:`pkgDepCache` +-------------------- +.. class:: pkgDepCache + + The pkgDepCache object contains various methods to manipulate the cache, + to install packages, to remove them, and much more. + + .. method:: Commit(fprogress, iprogress) + + Apply all the changes made. + + The parameter *fprogress* has to be set to an instance of + apt.progress.FetchProgress or one of its subclasses. + + The parameter *iprogress* has to be set to an instance of + apt.progress.InstallProgress or one of its subclasses. + + .. method:: FixBroken() + + Try to fix all broken packages in the cache. + + .. method:: GetCandidateVer(pkg) + + Return the candidate version of the package, ie. the version that + would be installed normally. + + The parameter *pkg* refers to an :class:`Package` object, + available using the :class:`pkgCache`. + + This method returns a :class:`Version` object. + + .. method:: SetCandidateVer(pkg, version) + + The opposite of :meth:`pkgDepCache.GetCandidateVer`. Set the candidate + version of the :class:`Package` *pkg* to the :class:`Version` + *version*. + + + .. method:: Upgrade([distUpgrade=False]) + + Perform an upgrade. More detailed, this marks all the upgradable + packages for upgrade. You still need to call + :meth:`pkgDepCache.Commit` for the changes to apply. + + To perform a dist-upgrade, the optional parameter *distUpgrade* has + to be set to True. + + .. method:: FixBroken() + + Fix broken packages. + + .. method:: ReadPinFile() + + Read the policy, eg. /etc/apt/preferences. + + .. method:: MinimizeUpgrade() + + Go over the entire set of packages and try to keep each package marked + for upgrade. If a conflict is generated then the package is restored. + + .. todo:: + Explain better.. + + .. method:: MarkKeep(pkg) + + Mark the :class:`Package` *pkg* for keep. + + .. method:: MarkDelete(pkg[, purge]) + + Mark the :class:`Package` *pkg* for delete. If *purge* is True, + the configuration files will be removed as well. + + .. method:: MarkInstall(pkg[, autoInst=True[, fromUser=True]]) + + Mark the :class:`Package` *pkg* for install. + + If *autoInst* is ``True``, the dependencies of the package will be + installed as well. This is the default. + + If *fromUser* is ``True``, the package will be marked as manually + installed. This is the default. + + .. method:: SetReinstall(pkg) + + Set if the :class:`Package` *pkg* should be reinstalled. + + .. method:: IsUpgradable(pkg) + + Return ``1`` if the package is upgradable. + + The package can be upgraded by calling :meth:`pkgDepCache.MarkInstall`. + + .. method:: IsNowBroken(pkg) + + Return `1` if the package is broken now (including changes made, but + not committed). + + .. method:: IsInstBroken(pkg) + + Return ``1`` if the package is broken on the current install. This + takes changes which have not been committed not into effect. + + .. method:: IsGarbage(pkg) + + Return ``1`` if the package is garbage, ie. if it is automatically + installed and no longer referenced by other packages. + + .. method:: IsAutoInstalled(pkg) + + Return ``1`` if the package is automatically installed (eg. as the + dependency of another package). + + .. method:: MarkedInstall(pkg) + + Return ``1`` if the package is marked for install. + + .. method:: MarkedUpgrade(pkg) + + Return ``1`` if the package is marked for upgrade. + + .. method:: MarkedDelete(pkg) + + Return ``1`` if the package is marked for delete. + + .. method:: MarkedKeep(pkg) + + Return ``1`` if the package is marked for keep. + + .. method:: MarkedReinstall(pkg) + + Return ``1`` if the package should be installed. + + .. method:: MarkedDowngrade(pkg) + + Return ``1`` if the package should be downgraded. + + .. attribute:: KeepCount + + Integer, number of packages marked as keep + + .. attribute:: InstCount + + Integer, number of packages marked for installation. + + .. attribute:: DelCount + + Number of packages which should be removed. + + .. attribute:: BrokenCount + + Number of packages which are broken. + + .. attribute:: UsrSize + + The size required for the changes on the filesystem. If you install + packages, this is positive, if you remove them its negative. + + .. attribute:: DebSize + + The size of the packages which are needed for the changes to be + applied. + + +:class:`MetaIndex` +------------------ + +.. todo:: + + Complete them + +.. class:: MetaIndex + + .. attribute:: URI + .. attribute:: Dist + .. attribute:: IsTrusted + .. attribute:: IndexFiles + + +:class:`PackageIndexFile` +------------------------- + +.. class:: PackageIndexFile + + .. method:: ArchiveURI(path) + + Return the full url to path in the archive. + + .. attribute:: Label + + Return the Label. + + .. attribute:: Exists + + Return whether the file exists. + + .. attribute:: HasPackages + + Return whether the file has packages. + + .. attribute:: Size + + Size of the file + + .. attribute:: IsTrusted + + Whether we can trust the file. + + +:class:`PkgManager` +------------------- + +.. class:: PkgManager + + Class, as returned by :func:`apt_pkg.GetPackageManager`. + + .. method:: GetArchives(fetcher, list, records) + + Add all the selected packages to the :class:`Acquire()` object + *fetcher*. + + The parameter *list* refers to a :class:`PkgSourceList()` object, as + returned by :func:`apt_pkg.GetPkgSourceList`. + + The parameter *records* refers to a :class:`pkgRecords()` object, as + returned by :func:`apt_pkg.GetPkgRecords`. + + .. method:: DoInstall() + + Install the packages. + + .. method:: FixMissing + + Fix the installation if a package could not be downloaded. + + .. attribute:: ResultCompleted + + A constant for checking whether the the result is 'completed'. + + Compare it against the return value of :meth:`PkgManager.GetArchives` + or :meth:`PkgManager.DoInstall`. + + .. attribute:: ResultFailed + + A constant for checking whether the the result is 'failed'. + + Compare it against the return value of :meth:`PkgManager.GetArchives` + or :meth:`PkgManager.DoInstall`. + + .. attribute:: ResultIncomplete + + A constant for checking whether the the result is 'incomplete'. + + Compare it against the return value of :meth:`PkgManager.GetArchives` + or :meth:`PkgManager.DoInstall`. + +:class:`pkgRecords` +-------------------- + +.. class:: PkgRecords + + Provide access to the packages records. This provides very useful + attributes for fast (convient) access to some fields of the record. + + See :func:`apt_pkg.GetPkgRecords` for initialization. + + + .. method:: Lookup(verfile_iter) + + Change the actual package to the package given by the verfile_iter. + + The parameter *verfile_iter* refers to a tuple consisting + of (:class:`PackageFile()`, int: index), as returned by various + attributes, including :attr:`Version.FileList`. + + Example (shortened):: + + cand = depcache.GetCandidateVer(cache['python-apt']) + records.Lookup(cand.FileList[0]) + # Now you can access the record + print records.SourcePkg # == python-apt + + .. attribute:: FileName + + Return the field 'Filename' of the record. This is the path to the + package, relative to the base path of the archive. + + .. attribute:: MD5Hash + + Return the MD5 hashsum of the package This refers to the field + 'MD5Sum' in the raw record. + + .. attribute:: SHA1Hash + + Return the SHA1 hashsum of the package. This refers to the field 'SHA1' + in the raw record. + + .. attribute:: SHA256Hash + + Return the SHA256 hashsum of the package. This refers to the field + 'SHA256' in the raw record. + + .. versionadded:: 0.7.9 + + .. attribute:: SourcePkg + + Return the source package. + + .. attribute:: SourceVer + + Return the source version. + + .. attribute:: Maintainer + + Return the maintainer of the package. + + .. attribute:: ShortDesc + + Return the short description. This is the summary on the first line of + the 'Description' field. + + .. attribute:: LongDesc + + Return the long description. These are lines 2-END from the + 'Description' field. + + .. attribute:: Name + + Return the name of the package. This is the 'Package' field. + + .. attribute:: Homepage + + Return the Homepage. This is the 'Homepage' field. + + .. attribute:: Record + + Return the whole record as a string. If you want to access fields of + the record not available as an attribute, you can use + :func:`apt_pkg.ParseSection` to parse the record and access the field + name. + + Example:: + + section = apt_pkg.ParseSection(records.Record) + print section['SHA256'] + +:class:`PkgSrcRecords` +---------------------- + +.. class:: PkgSrcRecords + + This represents the entries in the Sources files, ie. the dsc files of + the source packages. + + .. note:: + + If the Lookup failed, because no package could be found, no error is + raised. Instead, the attributes listed below are simply not existing + anymore (same applies when no Lookup has been made, or when it has + been restarted). + + .. method:: Lookup(pkgname) + + Lookup the record for the package named *pkgname*. To access all + available records, you need to call it multiple times. + + Imagine a package P with two versions X, Y. The first ``Lookup(P)`` + would set the record to version X and the second ``Lookup(P)`` to + version Y. + + .. method:: Restart() + + Restart the lookup. + + Imagine a package P with two versions X, Y. The first ``Lookup(P)`` + would set the record to version X and the second ``Lookup(P)`` to + version Y. + + If you now call ``Restart()``, the internal position will be cleared. + Now you can call ``Lookup(P)`` again to move to X. + + .. attribute:: Package + + The name of the source package. + + .. attribute:: Version + + A string describing the version of the source package. + + .. attribute:: Maintainer + + A string describing the name of the maintainer. + + .. attribute:: Section + + A string describing the section. + + .. attribute:: Record + + The whole record, as a string. You can use :func:`apt_pkg.ParseSection` + if you need to parse it. + + You need to parse the record if you want to access fields not available + via the attributes, eg. 'Standards-Version' + + .. attribute:: Binaries + + Return a list of strings describing the package names of the binaries + created by the source package. This matches the 'Binary' field in the + raw record. + + .. attribute:: Index + + The index in the Sources files. + + .. attribute:: Files + + The list of files. This returns a list of tuples with the contents + ``(str: md5, int: size, str: path, str:type)``. + + .. attribute:: BuildDepends + + Return the list of Build dependencies, as + ``(str: package, str: version, int: op, int: type)``. + + .. table:: Values of *op* + + ===== ============================================= + Value Meaning + ===== ============================================= + 0x0 No Operation (no versioned build dependency) + 0x10 | (or) - this will be added to the other values + 0x1 <= (less than or equal) + 0x2 >= (greater than or equal) + 0x3 << (less than) + 0x4 >> (greater than) + 0x5 == (equal) + 0x6 != (not equal) + ===== ============================================= + + .. table:: Values of *type* + + ===== =================== + Value Meaning + ===== =================== + 0 Build-Depends + 1 Build-Depends-Indep + 2 Build-Conflicts + 3 Build-Conflicts-Indep + ===== =================== + + **Example**: In the following content, we will imagine a + build-dependency:: + + Build-Depends: A (>= 1) | B (>= 1), C + + This results in:: + + [('A', '1', 18, 0), # 18 = 16 + 2 = 0x10 + 0x2 + ('B', '1', 2, 0), + ('C', '', 0, 0)] + + This is **not** the same as returned by + :func:`apt_pkg.ParseSrcDepends`. + + +:class:`PkgSourceList` +----------------------- + +.. class:: PkgSourceList + + This is for :file:`/etc/apt/sources.list`. + + .. method:: FindIndex(pkgfile) + + Return a :class:`PackageIndexFile` object for the :class:`PackageFile` + *pkgfile*. + + .. method:: ReadMainList + + Read the main list. + + .. method:: GetIndexes(acq[, all]) + + Add the index files to the :class:`Acquire()` object *acq*. If *all* is + given and ``True``, all files are fetched. + + +:class:`ProblemResolver` +------------------------ +.. class:: ProblemResolver + + The problem resolver helps when there are problems in the package + selection. An example is a package which conflicts with another, already + installed package. + + .. method:: Protect(pkg) + + Protect the :class:`Package()` object given by the parameter *pkg*. + + .. todo:: + + Really document it. + + .. method:: InstallProtect() + + Protect all installed packages from being removed. + + .. method:: Remove(pkg) + + Remove the :class:`Package()` object given by the parameter *pkg*. + + .. todo:: + + Really document it. + + .. method:: Clear(pkg) + + Reset the :class:`Package()` *pkg* to the default state. + + .. todo:: + + Really document it. + + .. method:: Resolve() + + Try to resolve problems by installing and removing packages. + + .. method:: ResolveByKeep() + + Try to resolve problems only by using keep. + + +:class:`TagFile` +---------------- + +.. class:: TagFile + + An object which represents a typical debian control file. Can be used for + Packages, Sources, control, Release, etc. + + Use :func:`apt_pkg.ParseTagFile` to parse a file. + + .. method:: Step + + Step forward to the next section. This simply returns ``1`` if OK, and + ``0`` if there is no section + + .. method:: Offset + + Return the current offset (in bytes) from the beginning of the file. + + .. method:: Jump(offset) + + Jump back/forward to *offset*. Use ``Jump(0)`` to jump to the + beginning of the file again. + + .. attribute:: Section + + This is the current :class:`TagSection()` instance. + +:class:`TagSection` +------------------- + +.. class:: TagSection + + Represent a single section of a debian control file. + + .. describe:: section[key] + + Return the value of the field at *key*. If *key* is not available, + raise :exc:`KeyError`. + + .. method:: Bytes + + The number of bytes in the section. + + .. method:: Find(key, default='') + + Return the value of the field at the key *key* if available, + else return *default*. + + .. method:: FindFlag(key) + + Find a yes/no value for the key *key*. An example for such a + field is 'Essential'. + + .. method:: get(key, default='') + + Return the value of the field at the key *key* if available, else + return *default*. + + .. method:: has_key(key) + + Check whether the field with named by *key* exists. + + .. method:: keys() + + Return a list of keys in the section. diff --git a/doc/source/apt_pkg/index.rst b/doc/source/apt_pkg/index.rst new file mode 100644 index 00000000..1c5866a9 --- /dev/null +++ b/doc/source/apt_pkg/index.rst @@ -0,0 +1,261 @@ +:mod:`apt_pkg` --- The low-level bindings for apt-pkg +===================================================== +.. module:: apt_pkg + +The apt_pkg extensions provides a more low-level way to work with apt. It can +do everything apt can, and is written in C++. It has been in python-apt since +the beginning. + + +.. toctree:: + :maxdepth: 2 + :glob: + + * + + +Module Initialization +--------------------- + + +.. function:: initConfig + + Initialize the configuration of apt. This is needed for most operations. + +.. function:: initSystem + + Initialize the system. + +.. function:: init + + Deprecated function. Use initConfig() and initSystem() instead. + +Object initialization +---------------------- +.. function:: GetCache([progress]) + + Return a :class:`pkgCache` object. The optional parameter ``progress`` + specifies an instance of :class:`apt.progress.OpProgress()` which will + display the open progress. + +.. function:: GetCdrom() + + Return a Cdrom object with the following methods: + + .. method:: Cdrom.Ident(progress) + + Identify the cdrom. The parameter ``progress`` refers to an + :class:`apt.progress.CdromProgress()` object. + + .. method:: Cdrom.Add(progress) + + Add the cdrom to the sources.list file. The parameter ``progress`` + refers to an :class:`apt.progress.CdromProgress()` object. + + + +.. function:: GetDepCache(cache) + + Return a :class:`pkgDepCache` object. The parameter ``cache`` specifies an + instance of :class:`pkgCache` (see :func:`GetCache()`). + + +.. function:: GetPkgSourceList() + + Return a :class:`pkgSourceList` object. + + +The Acquire interface +---------------------- +.. function:: GetAcquire([progress]) + + Return an :class:`Acquire` object. This is a class which allows you + to fetch files, or archive contents. The parameter ``progress`` refers to + an :class:`apt.progress.FetchProgress()` object. + + Acquire items have multiple methods: + + .. method:: Acquire.Run() + + Fetch all the items which have been added by :func:`GetPkgAcqFile`. + + .. method:: Acquire.Shutdown() + + Shut the fetcher down. + + .. attribute:: Acquire.TotalNeeded + + The total amount of bytes needed (including those of files which are + already present) + + .. attribute:: Acquire.FetchNeeded + + The total amount of bytes which need to be fetched. + + .. attribute:: Acquire.PartialPresent + + Whether some files have been acquired already. (???) + + +.. function:: GetPkgAcqFile(aquire, uri[, md5, size, descr, shortDescr, destDir, destFile]) + + The parameter ``acquire`` refers to an :class:`Acquire()` object as returned + by :func:`GetAcquire`. The file will be added to the Acquire queue + automatically. + + The parameter ``uri`` refers to the location of the file, any protocol + of apt is supported. + + The parameter ``md5`` refers to the md5sum of the file. This can be used + for checking the file. + + The parameter ``size`` can be used to specify the size of the package, + which can then be used to calculate the progress and validate the download. + + The parameter ``descr`` is a descripition of the download. It may be + used to describe the item in the progress class. ``shortDescr`` is the + short form of it. + + You can use ``destDir`` to manipulate the directory where the file will + be saved in. Together with ``destFile`` you can specify the complete target + path. + + + +Hash functions +-------------- +The apt_pkg module also provides several hash functions. If you develop +applications with python-apt it is often easier to use these functions instead +of the ones provides in Python's :mod:`hashlib` module. + +.. function:: md5sum(object) + + Return the md5sum of the object. ``object`` may either be a string, in + which case the md5sum of the string is returned, or a :class:`file()` + object, in which case the md5sum of its contents is returned. + +.. function:: sha1sum(object) + + Return the sha1sum of the object. ``object`` may either be a string, in + which case the sha1sum of the string is returned, or a :class:`file()` + object, in which case the sha1sum of its contents is returned. + +.. function:: sha256sum(object) + + Return the sha256sum of the object. ``object`` may either be a string, in + which case the sha256sum of the string is returned, or a :class:`file()` + object, in which case the sha256sum of its contents is returned. + +Other functions +---------------- + +.. note:: + + This documentation is created automatically and should be rewritten. + +.. autofunction:: Base64Encode +.. autofunction:: CheckDep +.. autofunction:: CheckDomainList +.. autofunction:: DeQuoteString +.. autofunction:: GetLock +.. autofunction:: GetPackageManager +.. autofunction:: GetPkgActionGroup +.. autofunction:: GetPkgProblemResolver +.. autofunction:: GetPkgRecords +.. autofunction:: GetPkgSrcRecords +.. autofunction:: newConfiguration +.. autofunction:: ParseCommandLine +.. autofunction:: ParseDepends +.. autofunction:: ParseSection +.. autofunction:: ParseSrcDepends +.. autofunction:: ParseTagFile +.. autofunction:: PkgSystemLock +.. autofunction:: PkgSystemUnLock +.. autofunction:: QuoteString +.. autofunction:: ReadConfigFile +.. autofunction:: ReadConfigFileISC +.. autofunction:: RewriteSection +.. autofunction:: SizeToStr +.. autofunction:: StringToBool +.. autofunction:: StrToTime +.. autofunction:: TimeRFC1123 +.. autofunction:: TimeToStr +.. autofunction:: UpstreamVersion +.. autofunction:: URItoFileName +.. autofunction:: VersionCompare + + +Data +----- + +.. data:: Config + + An :class:`Configuration()` object with the default configuration. Actually, + this is a bit different object, but it is compatible. + +.. data:: RewritePackageOrder + +.. data:: RewriteSourceOrder + + +.. _CurStates: + +Package States +^^^^^^^^^^^^^^^ +.. data:: CurStateConfigFiles +.. data:: CurStateHalfConfigured +.. data:: CurStateHalfInstalled +.. data:: CurStateInstalled +.. data:: CurStateNotInstalled +.. data:: CurStateUnPacked + + + + +Dependency types +^^^^^^^^^^^^^^^^ +.. data:: DepConflicts +.. data:: DepDepends +.. data:: DepObsoletes +.. data:: DepPreDepends +.. data:: DepRecommends +.. data:: DepReplaces +.. data:: DepSuggests + +.. _InstStates: + +Installed states +^^^^^^^^^^^^^^^^^ +.. data:: InstStateHold +.. data:: InstStateHoldReInstReq +.. data:: InstStateOk +.. data:: InstStateReInstReq + +.. _Priorities: + +Priorities +^^^^^^^^^^ +.. data:: PriExtra +.. data:: PriImportant +.. data:: PriOptional +.. data:: PriRequired +.. data:: PriStandard + + +.. _SelStates: + +Select states +^^^^^^^^^^^^^^ +.. data:: SelStateDeInstall +.. data:: SelStateHold +.. data:: SelStateInstall +.. data:: SelStatePurge +.. data:: SelStateUnknown + + +Build information +^^^^^^^^^^^^^^^^^ +.. data:: Date +.. data:: LibVersion +.. data:: Time +.. data:: Version diff --git a/doc/source/aptsources/distinfo.rst b/doc/source/aptsources/distinfo.rst new file mode 100644 index 00000000..96f9445d --- /dev/null +++ b/doc/source/aptsources/distinfo.rst @@ -0,0 +1,10 @@ +:mod:`aptsources.distinfo` --- provide meta information for distro repositories +=============================================================================== + +.. automodule:: aptsources.distinfo + :members: + :undoc-members: + + .. note:: + + This part of the documentation is created automatically. diff --git a/doc/source/aptsources/distro.rst b/doc/source/aptsources/distro.rst new file mode 100644 index 00000000..06ca0fda --- /dev/null +++ b/doc/source/aptsources/distro.rst @@ -0,0 +1,10 @@ +:mod:`aptsources.distro` --- Distribution abstraction of the sources.list +=============================================================================== + +.. automodule:: aptsources.distro + :members: + :undoc-members: + + .. note:: + + This part of the documentation is created automatically. diff --git a/doc/source/aptsources/index.rst b/doc/source/aptsources/index.rst new file mode 100644 index 00000000..898fbf74 --- /dev/null +++ b/doc/source/aptsources/index.rst @@ -0,0 +1,10 @@ +:mod:`aptsources` --- Working with sources.list +===================================================== +.. automodule:: aptsources + +.. toctree:: + :maxdepth: 2 + :glob: + + * + diff --git a/doc/source/aptsources/sourceslist.rst b/doc/source/aptsources/sourceslist.rst new file mode 100644 index 00000000..509db3ce --- /dev/null +++ b/doc/source/aptsources/sourceslist.rst @@ -0,0 +1,10 @@ +:mod:`aptsources.sourceslist` --- Provide an abstraction of the sources.list +============================================================================ + +.. automodule:: aptsources.sourceslist + :members: + :undoc-members: + + .. note:: + + This part of the documentation is created automatically. diff --git a/doc/source/coding.rst b/doc/source/coding.rst new file mode 100644 index 00000000..1357ce14 --- /dev/null +++ b/doc/source/coding.rst @@ -0,0 +1,168 @@ +Coding for python-apt +====================== +Let's say you need a new feature, you can develop it, and you want to get it +included in python-apt. Then be sure to follow the following guidelines. + +Available branches +------------------- +First of all, let's talk a bit about the bzr branches of python-apt. In the +following parts, we will assume that you use bzr to create your changes and +submit them. + +**mvo:** http://people.ubuntu.com/~mvo/bzr/python-apt/mvo + This is Michael Vogt's branch. Most of the development of apt happens here, + as he is the lead maintainer of python-apt. + + This branch is also available from Launchpads super mirror, via + ``lp:python-apt``. Checkouts from Launchpad are generally faster and can + use the bzr protocoll. + + VCS-Browser: https://code.launchpad.net/~mvo/python-apt/python-apt--mvo + +**debian-sid:** http://bzr.debian.org/apt/python-apt/debian-sid + This is the official Debian branch of python-apt. All code which will be + uploaded to Debian is here. It is not as up-to-date as the mvo branch, + because this branch often gets updated just right before the release + happens. + + VCS-Browser: http://bzr.debian.org/loggerhead/apt/python-apt/debian-sid/changes + +**jak:** http://bzr.debian.org/users/jak/python-apt/jak + This is Julian Andres Klode's (the documentation author's) branch. This + is the place where cleanup and documentation updates happen. It is based + off debian-sid or mvo. + + VCS-Browser: http://bzr.debian.org/loggerhead/users/jak/python-apt/jak/changes + +**ubuntu:** ``lp:~ubuntu-core-dev/python-apt/ubuntu`` + This is the official Ubuntu development branch. The same notes apply as + for the debian-sid branch above. + + VCS-Browser: https://code.launchpad.net/~ubuntu-core-dev/python-apt/ubuntu + + +C++ Coding style +---------------- +When you work on the C++ code in the python/ directory, you should follow some +basic rules. + +The indentation of the code is a bit non-standard. We currently use 3 spaces +indentation for the C++ code. + +When you create new functions, you should follow some naming conventions. All +C++ functions are named according to the ``CamelCase`` convention. + +The resulting Python functions should be ``CamelCase`` as well in apt_pkg, or +``mixedCase`` in apt_inst. The same applies for variables, parameters, +attributes, etc. + +.. note:: + + This coding style guidelines are incomplete. If you have any questions + send an email to deity@lists.debian.org. + +.. note:: + + The coding style may be changed completely during the port to Python 3.0. + But this will not happen very soon. + + +Python Coding Style +------------------- +The coding style for all code written in python is :PEP:`8`. For modules added +from version 0.7.9 on, there are no exceptions. + +Modules introduced prior to 0.7.9 use mixedCase names for methods, functions +and variables. These names will be replaced by names conforming to :PEP:`8` +in a future release of python-apt. + +Therefore, try to reduce the introduction of the mixedName code to the absolute +minimum (sometimes you can also use shorter names). + +To prepare the port to Python 3.0, code should not use any functionality which +is deprecated as of Python 2.6. + +The has_key() functionality may be used only on TagSection objects; as they +provide no other way to do this. If someone is willing to adapt TagSection to +support ``key in mapping`` and ``iter(mapping)``, this would be great. + +.. note:: + + You can use the tool pep8.py from http://svn.browsershots.org/trunk/devtools/pep8/ + to validate your code. Please also run pylint, pychecker, and pyflakes and + fix all new **errors** they report (undefined names, etc.). + +Submitting your patch +--------------------- +First of all, the patch you create should be based against the debian-sid +branch of python-apt. + +Once you have made your change, check that it: + + * conforms to :PEP:`8` (checked with pep8.py). It should, at least not + introduce new errors. (and never have whitespace at end of line) + * produces no new errors in pychecker, pyflakes and pylint (unless you + can't fix them, but please tell so when requesting the merge, so it can + be fixed before hitting one of the main branches). + * does not change the behaviour of existing code in a non-compatible way. + +If your change follows all points of the checklist, you can commit it to your +repository. (You could commit it first, and check later, and then commit the +fixes, but commits should be logical and it makes no sense to have to commits +for one logical unit). + +Once you have made all your changes, you can run ``bzr send -o patch-name`` +to create a so called *merge-directive*, which contains your changes and +allows us to preserve the history of your changes. (But please replace patch-name +with something useful). + +Now report a bug against the python-apt package, attach the merge directive +you created in the previous step, and tag it with 'patch'. It might also be +a good idea to prefix the bug report with '[PATCH]'. + +If your patch introduces new functions, parameters, etc. , but does not update +the content of this documentation, please CC. jak@debian.org, and add a short +notice to the bug report. Also see `Documentation updates` + +Once your patch got merged, you can *pull* the branch into which it has been +merged into your local one. If you have made changes since you submitted your +patch, you may need to *merge* the branch instead. + +.. note:: + + If you plan to work on python-apt for a longer time, it may be a good + idea to publish your branch somewhere. Alioth (http://alioth.debian.org) + and Launchpad (https://launchpad.net) provide bzr hosting. You can also + use any webspace with ftp or sftp connection (for the upload). Then you do + not need to send *merge directives*, but you can point to your branch + instead. + + +Documentation updates +--------------------- +If you want to update the documentation, please follow the procedure as written +above. But please CC: jak@debian.org in the bug report. + +You can send your content in plain text, but reStructuredText is the preferred +format. I (Julian Andres Klode) will review your patch and will forward them to +Michael Vogt, for inclusion in his branch. On release, this will be merged into +the debian-sid branch. + + +Example patch session +---------------------- +In the following example, we edit a file, create a merge directive (an enhanced +patch), and report a wishlist bug with this patch against the python-apt +package:: + + user@pc:~$ bzr clone http://bzr.debian.org/apt/python-apt/debian-sid/ + user@pc:~$ cd debian-sid + user@pc:~/debian-sid$ editor FILES + user@pc:~/debian-sid$ pep8.py FILES # PEP 8 check, see above. + user@pc:~/debian-sid$ pylint -e FILES # Check with pylint + user@pc:~/debian-sid$ pyflakes FILES # Check with pyflakes + user@pc:~/debian-sid$ pychecker FILES # Check with pychecker + user@pc:~/debian-sid$ bzr commit + user@pc:~/debian-sid$ bzr send -o my-patch + user@pc:~/debian-sid$ reportbug --severity=wishlist --tag=patch --attach=my-patch python-apt + user@pc:~/debian-sid$ # Add --list-cc=jak@debian.org if you change docs. diff --git a/doc/source/conf.py b/doc/source/conf.py new file mode 100644 index 00000000..8f71e3e3 --- /dev/null +++ b/doc/source/conf.py @@ -0,0 +1,200 @@ +# -*- coding: utf-8 -*- +# +# python-apt documentation build configuration file, created by +# sphinx-quickstart on Wed Jan 7 17:04:36 2009. +# +# This file is execfile()d with the current directory set to its containing +# dir. +# +# The contents of this file are pickled, so don't put values in the namespace +# that aren't pickleable (module imports are okay, they're removed +# automatically). +# +# Note that not all possible configuration values are present in this +# autogenerated file. +# +# All configuration values have a default; values that are commented out +# serve to show the default. +import os +import sys + +# If your extensions are in another directory, add it here. If the directory +# is relative to the documentation root, use os.path.abspath to make it +# absolute, like shown here. +sys.path.insert(0, os.path.abspath('..')) +sys.path.insert(0, os.path.abspath('../..')) +if os.path.exists("../../build"): + for dirname in os.listdir('../../build'): + sys.path.insert(0, os.path.abspath('../../build/' + dirname)) + +# General configuration +# --------------------- + +# Add any Sphinx extension module names here, as strings. They can be +# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones. +extensions = ['sphinx.ext.autodoc', 'sphinx.ext.doctest', + 'sphinx.ext.intersphinx', 'sphinx.ext.todo'] +intersphinx_mapping = {'http://docs.python.org/': None} + +# Add any paths that contain templates here, relative to this directory. +templates_path = ['.templates'] + +# The suffix of source filenames. +source_suffix = '.rst' + +# The encoding of source files. +#source_encoding = 'utf-8' + +# The master toctree document. +master_doc = 'index' + +# General information about the project. +project = u'python-apt' +copyright = u'2009, Julian Andres Klode <jak@debian.org>' + +# The version info for the project you're documenting, acts as replacement for +# |version| and |release|, also used in various other places throughout the +# built documents. +# +# The short X.Y version. +version = '0.7' +# The full version, including alpha/beta/rc tags. +release = '0.7.9~exp2' + +# The language for content autogenerated by Sphinx. Refer to documentation +# for a list of supported languages. +#language = None + +# There are two options for replacing |today|: either, you set today to some +# non-false value, then it is used: +#today = '' +# Else, today_fmt is used as the format for a strftime call. +#today_fmt = '%B %d, %Y' + +# List of documents that shouldn't be included in the build. +#unused_docs = [] + +# List of directories, relative to source directory, that shouldn't be searched +# for source files. +exclude_trees = [] + +# The reST default role (used for this markup: `text`) for all documents. +#default_role = None + +# If true, '()' will be appended to :func: etc. cross-reference text. +#add_function_parentheses = True + +# If true, the current module name will be prepended to all description +# unit titles (such as .. function::). +#add_module_names = True + +# If true, sectionauthor and moduleauthor directives will be shown in the +# output. They are ignored by default. +#show_authors = False + +# The name of the Pygments (syntax highlighting) style to use. +pygments_style = 'sphinx' + + +# Options for HTML output +# ----------------------- + +# The style sheet to use for HTML and HTML Help pages. A file of that name +# must exist either in Sphinx' static/ path, or in one of the custom paths +# given in html_static_path. +html_style = 'default.css' + +# The name for this set of Sphinx documents. If None, it defaults to +# "<project> v<release> documentation". +#html_title = None + +# A shorter title for the navigation bar. Default is the same as html_title. +#html_short_title = None + +# The name of an image file (relative to this directory) to place at the top +# of the sidebar. +#html_logo = None + +# The name of an image file (within the static path) to use as favicon of the +# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32 +# pixels large. +#html_favicon = None + +# Add any paths that contain custom static files (such as style sheets) here, +# relative to this directory. They are copied after the builtin static files, +# so a file named "default.css" will overwrite the builtin "default.css". +html_static_path = ['.static'] + +# If not '', a 'Last updated on:' timestamp is inserted at every page bottom, +# using the given strftime format. +#html_last_updated_fmt = '%b %d, %Y' + +# If true, SmartyPants will be used to convert quotes and dashes to +# typographically correct entities. +#html_use_smartypants = True + +# Custom sidebar templates, maps document names to template names. +#html_sidebars = {} + +# Additional templates that should be rendered to pages, maps page names to +# template names. +#html_additional_pages = {} + +# If false, no module index is generated. +#html_use_modindex = True + +# If false, no index is generated. +#html_use_index = True + +# If true, the index is split into individual pages for each letter. +#html_split_index = False + +# If true, the reST sources are included in the HTML build as _sources/<name>. +#html_copy_source = True + +# If true, an OpenSearch description file will be output, and all pages will +# contain a <link> tag referring to it. The value of this option must be the +# base URL from which the finished HTML is served. +#html_use_opensearch = '' + +# If nonempty, this is the file name suffix for HTML files (e.g. ".xhtml"). +#html_file_suffix = '' + +# Output file base name for HTML help builder. +htmlhelp_basename = 'python-aptdoc' + + +# Options for LaTeX output +# ------------------------ + +# The paper size ('letter' or 'a4'). +#latex_paper_size = 'letter' + +# The font size ('10pt', '11pt' or '12pt'). +#latex_font_size = '10pt' + +# Grouping the document tree into LaTeX files. List of tuples +# (source index, target name, title, author, document class [howto/manual]). +latex_documents = [ + ('index', 'python-apt.tex', ur'python-apt Documentation', + ur'Julian Andres Klode <jak@debian.org>', 'manual'), +] + +# The name of an image file (relative to this directory) to place at the top of +# the title page. +#latex_logo = None + +# For "manual" documents, if this is true, then toplevel headings are parts, +# not chapters. +#latex_use_parts = False + +# Additional stuff for the LaTeX preamble. +#latex_preamble = '' + +# Documents to append as an appendix to all manuals. +#latex_appendices = [] + +# If false, no module index is generated. +#latex_use_modindex = True + +todo_include_todos = True diff --git a/doc/source/examples/apt-gtk.py b/doc/source/examples/apt-gtk.py new file mode 100644 index 00000000..c3bb09d5 --- /dev/null +++ b/doc/source/examples/apt-gtk.py @@ -0,0 +1,29 @@ +#!/usr/bin/python +"""Example for gtk widgets""" +import pygtk +pygtk.require("2.0") +import gtk + +import apt.gtk.widgets + + +def main(): + """Main function.""" + win = gtk.Window() + win.connect("destroy", gtk.main_quit) + progress = apt.gtk.widgets.GtkAptProgress() + win.set_title("GtkAptProgress Demo") + win.add(progress) + progress.show() + win.show() + cache = apt.cache.Cache(progress.open) + if cache["xterm"].isInstalled: + cache["xterm"].markDelete() + else: + cache["xterm"].markInstall() + progress.show_terminal(expanded=True) + cache.commit(progress.fetch, progress.install) + gtk.main() + +if __name__ == "__main__": + main() diff --git a/doc/source/examples/cache-packages.py b/doc/source/examples/cache-packages.py new file mode 100644 index 00000000..1abe7cf2 --- /dev/null +++ b/doc/source/examples/cache-packages.py @@ -0,0 +1,22 @@ +#!/usr/bin/python +"""Example for packages. Print all essential and important packages""" + +import apt_pkg + + +def main(): + """Main.""" + apt_pkg.InitConfig() + apt_pkg.InitSystem() + cache = apt_pkg.GetCache() + print "Essential packages:" + for pkg in cache.Packages: + if pkg.Essential: + print " ", pkg.Name + print "Important packages:" + for pkg in cache.Packages: + if pkg.Important: + print " ", pkg.Name + +if __name__ == "__main__": + main() diff --git a/doc/source/examples/cache-pkgfile.py b/doc/source/examples/cache-pkgfile.py new file mode 100644 index 00000000..f25975d3 --- /dev/null +++ b/doc/source/examples/cache-pkgfile.py @@ -0,0 +1,29 @@ +#!/usr/bin/python +import apt_pkg + + +def main(): + """Example for PackageFile()""" + apt_pkg.init() + cache = apt_pkg.GetCache() + for pkgfile in cache.FileList: + print 'Package-File:', pkgfile.FileName + print 'Index-Type:', pkgfile.IndexType # 'Debian Package Index' + if pkgfile.NotSource: + print 'Source: None' + else: + if pkgfile.Site: + # There is a source, and a site, print the site + print 'Source:', pkgfile.Site + else: + # It seems to be a local repository + print 'Source: Local package file' + if pkgfile.NotAutomatic: + # The system won't be updated automatically (eg. experimental) + print 'Automatic: No' + else: + print 'Automatic: Yes' + print + +if __name__ == '__main__': + main() diff --git a/doc/source/examples/dpkg-contents.py b/doc/source/examples/dpkg-contents.py new file mode 100644 index 00000000..99d1596f --- /dev/null +++ b/doc/source/examples/dpkg-contents.py @@ -0,0 +1,55 @@ +#!/usr/bin/python +"""Emulate dpkg --contents""" + +import grp +import pwd +import stat +import sys +import time + +import apt_inst + + +def format_mode(what, mode): + """Return the symbolic mode""" + s_mode = dict(DIR="d", HARDLINK="h", FILE="-").get(what) + s_mode += ((mode & stat.S_IRUSR) and "r" or "-") + s_mode += ((mode & stat.S_IWUSR) and "w" or "-") + s_mode += ((mode & stat.S_IXUSR) and (mode & stat.S_ISUID and "s" or "x") + or (mode & stat.S_ISUID and "S" or "-")) + s_mode += ((mode & stat.S_IRGRP) and "r" or "-") + s_mode += ((mode & stat.S_IWGRP) and "w" or "-") + s_mode += ((mode & stat.S_IXGRP) and (mode & stat.S_ISGID and "s" or "x") + or (mode & stat.S_ISGID and "S" or "-")) + s_mode += ((mode & stat.S_IROTH) and "r" or "-") + s_mode += ((mode & stat.S_IWOTH) and "w" or "-") + s_mode += ((mode & stat.S_IXOTH) and "x" or "-") + return s_mode + + +def callback(what, name, link, mode, uid, gid, size, mtime, major, minor): + """callback for debExtract""" + s_mode = format_mode(what, mode) + s_owner = "%s/%s" % (pwd.getpwuid(uid)[0], grp.getgrgid(gid)[0]) + s_size = "%9d" % size + s_time = time.strftime("%Y-%m-%d %H:%M", time.localtime(mtime)) + s_name = name.startswith(".") and name or ("./" + name) + if link: + s_name += " link to %s" % link + print s_mode, s_owner, s_size, s_time, s_name + + +def main(): + """Main function""" + if len(sys.argv) < 2: + print >> sys.stderr, "need filename argumnet" + sys.exit(1) + + fobj = open(sys.argv[1]) + try: + apt_inst.debExtract(fobj, callback, "data.tar.gz") + finally: + fobj.close() + +if __name__ == "__main__": + main() diff --git a/doc/source/examples/dpkg-extract.py b/doc/source/examples/dpkg-extract.py new file mode 100644 index 00000000..ced8652f --- /dev/null +++ b/doc/source/examples/dpkg-extract.py @@ -0,0 +1,25 @@ +#!/usr/bin/python +"""Emulate dpkg --extract package.deb outdir""" +import os +import sys + +import apt_inst + + +def main(): + """Main function.""" + if len(sys.argv) < 3: + print >> sys.stderr, "Usage:", __file__, "package.deb outdir" + sys.exit(1) + if not os.path.exists(sys.argv[2]): + print >> sys.stderr, "The directory %s does not exist" % sys.argv[2] + sys.exit(1) + + fobj = open(sys.argv[1]) + try: + apt_inst.debExtractArchive(fobj, sys.argv[2]) + finally: + fobj.close() + +if __name__ == "__main__": + main() diff --git a/doc/source/examples/dpkg-info.py b/doc/source/examples/dpkg-info.py new file mode 100644 index 00000000..ff98d8b1 --- /dev/null +++ b/doc/source/examples/dpkg-info.py @@ -0,0 +1,20 @@ +#!/usr/bin/python +"""Emulate dpkg --info package.deb control-file""" +import sys + +from apt_inst import debExtractControl + + +def main(): + """Main function.""" + if len(sys.argv) < 3: + print >> sys.stderr, 'Usage: tool file.deb control-file' + sys.exit(0) + fobj = open(sys.argv[1]) + try: + print debExtractControl(fobj, sys.argv[2]) + finally: + fobj.close() + +if __name__ == '__main__': + main() diff --git a/doc/source/examples/missing-deps.py b/doc/source/examples/missing-deps.py new file mode 100644 index 00000000..3ca16e45 --- /dev/null +++ b/doc/source/examples/missing-deps.py @@ -0,0 +1,52 @@ +#!/usr/bin/python +"""Check the archive for missing dependencies""" +import apt_pkg + + +def fmt_dep(dep): + """Format a Dependency object [of apt_pkg] as a string.""" + ret = dep.TargetPkg.Name + if dep.TargetVer: + ret += " (%s %s)" % (dep.CompType, dep.TargetVer) + return ret + + +def check_version(pkgver): + """Check the version of the package""" + missing = [] + + for or_group in pkgver.DependsList.get("Pre-Depends", []) + \ + pkgver.DependsList.get("Depends", []): + if not any(dep.AllTargets() for dep in or_group): + # If none of the or-choices can be satisfied, add it to missing + missing.append(or_group) + + if missing: + print "Package:", pkgver.ParentPkg.Name + print "Version:", pkgver.VerStr + print "Missing:", + print ", ".join(" | ".join(fmt_dep(dep) for dep in or_group) + for or_group in missing) + print + + +def main(): + """The main function.""" + apt_pkg.InitConfig() + apt_pkg.InitSystem() + + cache = apt_pkg.GetCache() + + for pkg in sorted(cache.Packages, key=lambda pkg: pkg.Name): + # pkg is from a list of packages, sorted by name. + for version in pkg.VersionList: + # Check every version + for pfile, _ in version.FileList: + if (pfile.Origin == "Debian" and pfile.Component == "main" and + pfile.Archive == "unstable"): + # We only want packages from Debian unstable main. + check_version(version) + break + +if __name__ == "__main__": + main() diff --git a/doc/source/index.rst b/doc/source/index.rst new file mode 100644 index 00000000..23ea4cca --- /dev/null +++ b/doc/source/index.rst @@ -0,0 +1,41 @@ +Welcome to python-apt's documentation! +====================================== + +.. note:: + + This documentation can not be considered complete at the moment. But it + provides better documentation than the documentation available through + pydoc. + +.. note:: + + + This documentation has been created by Sphinx, using reStructuredText files + written by Julian Andres Klode <jak@debian.org>, and in case of the apt + package, from the documentation shipped in the modules. + + +Contents: + +.. toctree:: + :maxdepth: 2 + + apt/index + apt_pkg/index + apt_inst + aptsources/index + coding + + + +Indices and tables +================== + +* :ref:`genindex` +* :ref:`modindex` +* :ref:`search` + + +TODO +====== +.. todolist:: |
